Patent · US Active

Catalytically active particulate filter

US10933373B2 · kind B2 · utility

6Cited by

1References

11Claims

0Family size

Assignee

UMICORE AG & CO. KG · DE

Inventors

Naina Deibel · Pfungstadt, DE
Stephanie Spiess · Darmstadt, DE
Martin Roesch · Rodgau, DE
Joerg-Michael Richter · Scheinfeld, DE
Jan Schoenhaber · Darmstadt, DE
Susanne KUNERT · Seeheim-Jugenheim, DE

Key dates

Filing date	Mar 20, 2018
Grant date	Mar 2, 2021
Priority date	—
Expiry date	Mar 20, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a particulate filter which comprises a wall flow filter of length L and three mutually different catalytically active coatings X, Y and Z, wherein the wall flow filter comprises channels E and A that extend in parallel between a first and a second end of the wall flow filter and are separated by porous walls forming surfaces OE and, respectively, OA, and wherein the channels E are gas-tightly sealed at the second end and the channels A are gas-tightly sealed at the first end, characterized in that the coating X is located in the porous walls, the coating Y is located in the channels E on the surfaces OE and the coating Z is located in the channels A on the surfaces OA.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.